Spray nozzle



.lilly 13,1926. 1,592,448

s. DEBUs A SPRAY NOZZLE Filed Sept. 8, 1925 nlmi :1

314101111 fot 3, but the up r end v ber is'tape as shown in Fig. 2.

Patented ,1926,

UNITED STATES i -1,s9z,44s PATENT orales.

suman. Daraus, or Hasrmos, Nnrnnsxa, assrGNon or omi-Hm ro wnmrm u. ra'rzna, or Enfermos, NEBRASKA.

SPRAY NOZZLE.

This invention relates to a spray nozzle adapted for use in connection with an apparatus for applying .hot grease to pans, such as are used when baking bread, and one object of the invention is to so construct the nozzle that. the hot grease may be -dis-` charged therefrom in a spray which will be l directed against the interior of the baking pan and evenly coat the pan with a thin layer of grease. v

` Another object of the invention is to provide a nozzle having a novel arrangement of air and grease passages so that the blast of compressed air will pass through the casing of the nozzle about` the ller thereof through which the liquefied grease passes and not only cause the grease to be discharged from the nozzle in a fine spray -'but also create a suction which will cause the grease to be sucked through the greasel passage of the filler.

Another object of the invention is to so form the nozzle that it will be simple in construction and consist of parts which may be readily taken apart when itis necessary Y to clean the nozzle or make repairs.

This invention is illustrated in the accom- A panying drawing, wherein Figure 1 is aview showing the improved $0 nozzle in side elevation;

Flg. 2 is a longitudinal sectional view l through the nozzle taken on the line 2-2of Fig. 1, and l Fig. 3 isa transverse sectional view taken $6 on the line 3-3 of Fi 2.

`The casing 1 of nozzle has been shown rectangular in cross section, but it will be understood that it may be\cylin drical or any other shapedesired. .Ears 2 o extend from opposite sides of` the casin and are formed with openings 3 throu which fasteners may be passed to secure t e nozzle to asuitable support and ina vertical position. The chamber 4 which'is formed 1n the casing .extends axially thereof with its c lower end opening through the .bottom ofthe casing and its upperl end opening throu h the concaved upperV end 5 thereof. AThe' amber 4 is' rectangular in cross section throughout itsv length, as shown in Fig.

portion 6 ofthe cham- The alle 7 which se Vinto the chamber .4 andisheldinplaee thereinb ahead8 screwed upon the reduced an threaded tending vthe grooves 15 and outward fy through t el lower end portion .9 of the casing is also rectangular in cross section and intermediate its length is reduced in diameter so as to provide an annular space 10 in the casing with ,which the air inlet port 11 communicates. The port 11 is formed transversely of the casing, as shown in Fig. 2, and has its outer end portion enlarged and threaded so that the pipe 12 which leads from a suitable source of compressed air may be screwed into the outer end portion of the port. The upper end portion 13 of the filler which projects through the tapered upper end `por tion 6y of the chamber 4 and terminates at its ufpper end in a flared spreader head 14 is o a diameter to dispose its faces in spaced relation to the walls of the tapered upper end portion of the chamber and the portion of the filler between the reduced intermediate rtion and tapered upper end portion is ormed with longitudinally ex- .grooves 1 5. It wil, therefore, be seen that air fed into the annular s ace 10 through the inlet port 11 ma pass t rou h tapered upper end portion o he casxngin the form of a thin film of aircompletely surrounding the tapered upper end portion of the filler. This film of air converges out-A wardly and is then spread by contact with the spreader head 14 so that it leaves the -head 14 in the form of a wide spray which.

will be well distributed over the inner surface of the pan 16 when the pan is placed' Y in an inverted position upon suitable su 9o porting means 16' and moved about over` t e nozzle. The grease assage 17 extendsv axially 4of the filler wit its upper end comwith branches 18 which open municatin throu vh t e tapered upper end portion of the er and communicate with the space between the `ta red upper end portion of the filler and tli, walls of the tapered upper end portion of the chamber 4. Thereore, the ihn of air discharged through the loo vgrooves 15 will pass over-the outer ends of the branches 18 and cre ate a suction in order to cause liquid grease to be drawn upwardly through the filler. /This liquid grease mlxes with the air and ig discharged in the form av spray to be applied to the pan. The p 17 has its lower end portion enand threaded to form a socket 19 whloh registers with an opening 20 formed in the head 8 and is adapted to receive the 110 threaded upper end portion of a feed pipe 21. The pipe 21 is of a diameter to extend inwardl through the neck 22 of the can-23 and is ormed with a collar 24 engaged by can in a liquid state.

Having -thus described the invention., I claim: l

1. A spray nozzle comprising an element formed at one end with a flared spreader head andl having an axially extending passage leading from its other end and terminating in branches opening through the sides of said element in spaced relation to the spreader head, and a casing disposed circumferentially about said element with the spreader head 'thereof spaced beyond one end of the casing, said casing being provided with an air in et intermediate its ends, said casingfbeing formed t0 direct a blast of air along said'elenient towards the spreader head' and across the outer ends of said branches to create a suction in said passage.

2. A spray nozzle comprising an element 'formed at one end with a flared spreader head and having an axially extending passage leading from its other end and termi- Knating in branches opening through the sides of saidelement'in spaced relation to the spreader head, and a casing disposed circumferentially aboutv said element with the head of the element projecting from one end of the casing to ,dispose the spreader head in .spaced relation to the said end of said casing, said casing provided with an` air inlet intermediate its ends, the adjacent peri hera-l surfaces of said element and casing eing formed to direct a lilm of air towards the spreader head across the outer p ends of said branches and create a suction inv said passage. A

3. A spra nozzle comprising a casin provided wit a pocket open at its upper en and having a side inlet port intermediate its depth and an inlet in its bottom, a filler plug in said pocket having a portion spaced from the walls thereof to form an annular compartment communicating with said side inlet, the upper portionof said lleibeing spaced from the walls of the pocket and pro- ]ecting through the open upper end of the pocket and terminating in a spreader head,

longitudinally extending passages being formed for communication between said compartment and the. space about the upper end portion-of said filler, and said ller being formed with a longitudinally extending 'in said passage having portions oi Lasarte bore having its lower end communicating with the inlet in the bottom of said pocket and its upper end opening into the space about the upper end portion of the filler.

4. A spray nozzle comprising a casing provided with a passage formed lwith a tapered upper portion and having a side port constituting an air inlet, a head at the lower end of said casin formed with an opening communicating with said passage, a plug in said passage having portions in snug contact with the walls of the passage and between said portions reduced to form an annular compartment communicating with said inlet, the upper portion of said plug being tapered and extending through the tapered portion of the passage in spaced relation to the walls thereof and terminatin in a spreader head above the up r end o said casing, grooves being forme longitudinally upon said plug' and communicating with said compartment and the tapered upper end portion of said passage, and said plug being formed with a longitudinally extending passage having its lower end registering with the opening in said head and at its upper end communicatingwith the tapered portion of the passage in said casing.-

5. A Aspray nozzle comprising a casing havin a longitudinally extending passage forme with a tapered upper end portion, a head removably connected with/the lower end `of said casing and having an opening communicating with said passage a plug its surface contacting with the walls of the passage and between said portions spaced from the walls of the passage to form an annular com' partment in the casing, said easing having a side port communicating with said compartment and constitutin an air inlet', the upper portion of said plug eing tapered and projecting through the tapered upper portion of the passage in spaced relation to the walls thereof and terminating in a spreader head above the upper end of the casing, said plug being formed with a longitudinally extending passage having its lower end registering with the opening in said head and adapted to receive a supply pipe rojected there-- throu h and at its up er en terminating in l brano es communicating with the space be.- tween the tapered portion of the plu and walls of the casing passagle, the plug eing formed with longltudina y extending ex.- ternal grooves communicating with said compartment and the last-mentioned space.

6. A spray nozzle comprising a casing having an axially extending passage formed with a tapered upper end portion, the upper end face of said casing being concave, a head removably carried by the lower end o said casing and formed with an opening communicating with the lower end of sai passage, and a plug fitted into said passage CTI "branch passages and held against turning therein, said plug lpassage about the plug and sai casing havlng a side port constituting an air inlet communicating with said space, the plu between its tapered end portion and re uced intermediate portion being provided with longitudinally extending. rooves, and said plug having 'a longitudiney y extending pas-v sage terminating at its, lower end in. an enlarged threaded socket to receive a pipe passed inwardly through the opening in saidv ead and at its upper end terminating in through the tapered end portion ofthe plug. ,7. A spray nozzle comprising a casin havin a. concaved upper vend face an formelgwith an axially extending passage rectangular in cross section and tapered at its upper end, said casing having a side port intermediate its depth and constituting an air inlet, a head removably secured at ,the lower end of said casing and having an open- 4leading transversely ing communicating with said passage, a plug in said passage, said plug being rectangular' in cross section and having a tapered upper end portion projecting throu h the -end' of the compartment -in spaced relation to the walls of the tapered upper portion of said passage andterminating in a spreader head, the intermediate portion of the plug being reduced in diameter to provide an annular space in the casing communicating with the airinlet and the portion of the plug above the reduced portion being -formed with longitudinally en tending rooves communicating` at their lower en s with the annular space and at their upper ends communicating with space between the tapered .portions 'of the plug and walls of the passage, ing formed with an axially extending passage having its lower end portion enlarged to form a socket to receive a `supply pipe projected inwardly through the opening In said head and at its upper end terminating in branches extending transversely through the tapered upper end portion of the plug.

In testimony whereof I ailx my signature.

SANDER DEBUS. [L 8.]

and said plug be-v 

